Editing Procedure (section)

=== Mass Positioning ===
To begin we must have at least an idea of where to position the small mass. The large mass must also be placed such that it is in a similar position to the small mass at the opposite end such that the air resistance is similar from velocity. Ideally the masses should also have an identical cross sectional area for the same reason but the uncertainty introduced in the experiment due to this is hopefully small enough to not affect results.

The small mass and large mass positions can be placed using trial and error or by using the calculation outlined in the [[Theory]] section.

By positioning the large mass such that it touches a knife edge pivot, the small mass can be set somewhere around 2-4cm from the opposite knife edge. This seems to be a good positioning for the large mass.

A decision of how the position of the small mass is going to be measured must be made. The value of the measurement is relevant only to the other small mass position measurements but it's precision will affect the fit precision and ultimately the final result. By measuring from the bottom of the small mass, in the small mass up (SMU) orientation, to top flat portion of the closest knife edge, a digital caliper can be used as a precise measuring device. It is important to note, however, that the small mass can slide and pivot slightly even when tightened very well so it is very easy to over estimate the measurements precision.